Drones,
Journal Year:
2024,
Volume and Issue:
8(11), P. 693 - 693
Published: Nov. 20, 2024
In
recent
years,
the
unmanned
aerial
vehicle-assisted
internet
of
vehicles
has
been
extensively
studied
to
enhance
communication
and
computation
services
in
vehicular
environments
where
ground
infrastructures
are
limited
or
absent.
However,
due
limited-service
range
battery
life
vehicles,
along
with
high
mobility
an
vehicle
cannot
continuously
cover
serve
same
vehicle,
leading
interruptions
application
services.
Therefore,
this
paper
proposes
a
joint
optimization
strategy
for
task
migration
power
allocation
based
on
soft
actor-critic
(JOTMAP-SAC).
First,
models,
computational
resource
models
established
sequentially
dynamic
coordinate
each
node.
The
problem
is
then
formulated.
Considering
nature
environment
continuity
action
space,
algorithm
designed.
This
iteratively
finds
optimal
solution
problem,
thereby
reducing
processing
delay
ensuring
processing.
IEEE Transactions on Vehicular Technology,
Journal Year:
2024,
Volume and Issue:
73(9), P. 13665 - 13681
Published: April 11, 2024
The
proliferation
of
computation-intensive
and
delay-sensitive
applications
in
the
Internet
Vehicles
(IoV)
poses
great
challenges
to
resource-constrained
vehicles.
To
tackle
this
issue,
Mobile
Edge
Computing
(MEC)
enabling
offloading
on-vehicle
tasks
edge
servers
has
emerged
as
a
promising
approach.
MEC
jointly
augments
network
computing
capabilities
alleviates
resource
utilization
for
IoV,
garnering
substantial
attention.
Nevertheless,
efficacy
depends
heavily
on
adopted
scheme,
especially
presence
complex
subtask
dependencies.
Existing
research
largely
overlooked
crucial
dependencies
among
subtasks,
which
significantly
influence
decision
making
offloading.
This
work
attempts
schedule
subtasks
with
guaranteed
while
minimizing
system
latency
energy
costs
multi-vehicle
scenarios.
Firstly,
we
introduce
priority
scheduling
method
basis
Directed
Acyclic
Graph
(DAG)
topological
structure
ensure
order
scenarios
interdependencies.
Secondly,
light
privacy
concerns
limited
information
sharing,
propose
an
Optimized
Distributed
Computation
Offloading
(ODCO)
scheme
based
deep
reinforcement
learning
(DRL),
alleviating
conventional
requirement
extensive
vehicle-specific
sharing
achieve
optimal
performance.
adaptive
$k$
-step
approach
is
further
presented
enhance
robustness
training
process.
Numerical
experiments
are
demonstrate
advantages
proposed
regarding
reduction
cost
and,
more
importantly,
convergence
rate
comparison
existing
state-of-the-art
schemes.
For
instance,
ODCO
achieved
utility
approximately
0.80
within
300
episodes,
obtaining
gains
about
0.05
compared
distributed
earliest-finish
time
(DEFO)
algorithm
around
500
episodes.
IEEE Access,
Journal Year:
2023,
Volume and Issue:
12, P. 12909 - 12918
Published: Dec. 18, 2023
The
high
latency
and
energy
consumption
of
wireless
body
areas
networks
(WBANs)
for
computing-intensive
tasks
is
intolerable,
especially
remote
interventional
surgery.
In
this
paper,
a
multi-mobile
edge
server
collaborative
computation
offloading
scheme
proposed,
which
enables
to
choose
offload
certain
proportion
efficiently
handle
services
massive
users.
More
specifically,
we
formulate
the
problem
minimizing
system
consumption,
then
model
task
resource
allocation
process
as
Markov
decision
(MDP).
We
have
developed
called
m4m-PDQN
optimize
decisions,
aiming
minimize
weighted
sum
consumption.
Compared
existing
single-server
schemes,
it
more
effective
in
utilizing
computing
resources
reducing
waiting
time
multiple-server
scenarios.
experimental
results
show
that
outperforms
other
algorithms
terms
performance
efficiency,
significantly
improving
quality
service
(QoS)
wearable
area
medical
applications.